? ?"What is interesting is that my selection of this option managed to persist through a complete reinstall of the software.? The Control Panel's persistent settings must be stored in the registry or in a configuration file that does not get erased or overwritten.? I will have to go looking for where such items are stored with the new LTspice."

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All LTspice configuration settings are stored in the LTspice*.ini file where "*" = IV or XVII.? That file is in my user's AppData\Roaming directory. ?(There is a better pointer to that directory using environment variables, but I don't know it off-hand.) ?The file is NOT over-written by a re-install, so yes, it will retain your settings.

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LTspiceIV *can* store its settings in the Windows Registry instead, if you tell it to.? But by default, it doesn't touch the Registry.

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Regards,

Andy

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